Fluid extractors

ABSTRACT

Fluid extractors include tubular chambers surrounding and movable along pipes having ports and carrying pressers which project through the ports to press away from the ports adjacent portions of hoses in the pipes to open openings in the hoses for flow of fluid from the hoses into the chambers.

United StatesPatem my Allen et al; I 1

[ FLUID EXTRACTORS [7S] lnventors:- Charles H. Allen, 'Paseo; Willlred F.

Smith, Richland, both of Wash.

[73] Assignee: Battelle Development Corporation, Columbus, Ohio [22] Filed: June 27.1972

[21] Appl.No.:'266,576

[52] US. Cl l37/625.28, 25l/7, 25l/9 [51] Int. Cl ..l Fl6k 7/06 [58] Field of 251/7, 8, 9, l0. 4, 33];

[56] References Cited UNITED STATES PATENTS 3.095905 7/1963 l i l uber...i...i.f... 25 1331 x Attorney, Agent,

IIIILQLAIIIIF II June 4, 1974 5/1972 Schwartzrnan uzsms x Primary Examiner-Arnold Rosenthal or Firml(larquist, Sparkman. Campbell, Leigh, Hall & Whinston 571 ABSTRACT Fluid extractors include tubular chambers surrounding and movable along pipes ha'ving ports and carrying pressers which project through the ports to press away from the ports adjacent portions of hoses in the pipes to open openings in the hoses for flow of fluid from the hoses into the chambers.

v 24 Claims,-9 Drnw ing Figures III/II PATENTEDJHN 41ml 33141130 sums of 3 FIGTT w 'np' mo An objectof the, invention-is-to provide newandimproved fluid extractors. Another object of the invention is to provide new and improved extractors for movable irrigation lines.

A further object of the invention is to provide an extractor utilizinga hose with openings spaced therealong for supplying fluid toa line movable along the hose.

Another object 'ofthe invention is to provide apparatus forsupplying water to a :movable irrigation line whereinwater under pressurein a hose presses openings in the hose against the inner wall of a pipe to close the openings and a presser carried by an extractor tube connected to the: irrigation line presses portions of the hose radially inwardly sufficiently to open the openings and create apassage from the openings to a port of the pipe enclosed by the chamber.

Another objectofthe winvention is to provide apparatus'forsupplying water to a movable'irrigation line in which an-extractor'chamber connected to the line is moved in sealed relationship along'thetop of a pipe having openings spaced along the top and a presser carried with the extractor chamber. is extended seriatim through the openings to' flex at .least partially a cylindrical sealing member extending along the'pipe'to move openings in the sealing member away from the pipe and form passages from these openings tothe openings in the pipe, the openings in the sealing member being offset along the pipefrom the openings in the pipe and being either holes or slits in the sealing member.

Another object-of the in vention is to provide apparatusfor supplying water to an irrigation line including a presser slidable by an extractor chamber along a slot in an outer pipe to press adjacent portions of ahose in the pipe away from the slot and distort the hose to open openings in thehose so that wateris supplied from the hose to the extractor chamber.

lnthe drawings:

F IG. 1 is a fragmentary-perspective viewofa e xtractor forming one embodiment ofthe invention;- I

FlG. 2 isan enlarged, vertical, sectional view taken along line z-z-ar FIG. 1;

FlG. -3 is an enlarged. fragmentary, vertical sectional 7 view taken along line 3-3 of FIG. 2;

F IG, 4 is an enlarged, fragmentary, vertical, sectional view taken along line 44' of FIG. 2; v FIG. 5 is a fragmentary, vertical, sectional view of a fluid extractor forming an alternate embodiment of the invention FIG. 6 is a'fragrnentary,'vertical, sectional view taken along line 6-76 of H0. 5;

v FlG.'7 is a fragmentary, vertlcalr sectional view of a fluid extractor forming-an alternate embodiment of the invention; i v 4 F IG. 8 is a fragmentary, vertical, sectional view taken along line 8 8 of FlG.-'7;' and,

FIG. 9 is a fragmentary, vertical, sectional v'iew-of. a fluid extractor formingan alternate embodiment of the ivention. Q

Referring now in. detail to the drawings, there is shown in FIGS. 1-4 a fluid extractor formingoneembodiment of the invention and including an extractor chamber 10 carried by a line pipe 12-supported by an 2 irrigation line move 14 which has tractors l6 propelling the pipe .12 along a stationary supply line 18 supplied with water under pressure. The line pipe 12 has sprinklers 20 spaced therealong. The supply linexl8 includes a cylindrical metal pipe 22 and a flexible hose 28-of rubber or other elastomerwhicli-fitsclosely in and ex tends along the pipe 22 from almost one end to almost the-other end 'of the pipe 22. The hose 28 is supplied with water under pressure. The supply line 18 is supported by spring-biased pivotal yokes 24 and supported at its ends by fixed split clamps 26 v 1 a As the line pipe"l2 is moved alongthe supply line 18, presser fingers 30 of a presser wheel 32 (FIGS. 2), which is rotatably mounted in the chamber flllby a shaft 33 rotatable in bearings 34, are extended through openings 36 spaced along the top of the pipe 22.:The spacing of the openings and thejfingers are such asto give a rack and pinion effect to rotate the wheel. Rounded ends 37 of the fingers 30 press, against the pressure of the water, the adjacent upper portion of the hose 28 downwardly away from the innersurface of the pipe 22 to. move holes 38 in the sides of thehose away from sealing engagement with the inner surface of the pipe. This opens the holes'38 and forms passages-from the holes 38.to the openings 36 and the water flows therethrough from the supply line 18 into the extractor chamber l0 'and through an exit port 40 to the pipe '12. As the wheel 32 is rolled along the pipe 22a'ndthe tingers are withdrawn from the openings 36, the resiliency of the hose and the pressure of-the watei'in the hose forces the portions of the hose surrounding the holes 38 back into sealing engagement with theadjac'ent abu't- The extractor chamber 10 has aligned tubular portions 50 carrying elongated tubular seals 52 which fit closely on the supply pipe 22 and sealingly engage the pipe. Each seal 52 is of a length greater than the axial dimension of each opening 36 in the pipe 22.-A-cover 54 is removably secured to and sealed-to the rest of the walls 56 of the generally tubularcharnber. 10.

The extractor chamber 10 may be supported on the ground by wheels, skids or crawler tracks (not shown).

While the hose 28 shown has two rows of holes-38, for a small diameter hose 28, the holes 38 at the sides are omitted and a single row of holes (not shown) are pro-. vided in the top portion of the hose, these latter holes being positioned between and spaced from the openings 36. The upper portion of the hose 28, in width covering one-third to one-half of the circumference of the hose, is made of rubber having greater rigiditythan thebalance of the hose. This relatively rigid portion has a hardness value of approximately durometers, the balance being approximately 30 durometers; Values that would be acceptable for hose of this type'range.

from 70 todurometers for the-relatively'rigid portion and from 20 to 40 for the remaindeL-Asan alter- 3 ntoallowuseot'thin-nalledhoseandlteepthelwse from bulging at the openings 36 in the pipe 22.

EMBODIMENT OF FIGS. 5 AND 6 A fluid extractor forming an alternate embodiment of the invention includes an extractor chamber [0 carried by a line move (not shown I like the line moir I. The chamber 70 is moved along a supply line 78. which in- 'cludesa hose88 like the hose ZSexcept that the hose 88 has an integral top rib 89 fitting close in and substantially filling a continuous top slot 9| in a supply P p:

An elongated preser shoe IIII has rounded end portions I62 and carried by a push rod [04 releasably held down by a latch I06. The shoe is moved along the supply line 78 by the chamber and presses the adjacent portion of the hose 88 downuardly to deflect the portions surrounding holes I08 out of scaled engagement with the pipe 82 and form passages from the holes I08 to the slot 9|.

The extractor chamber 70 has aligned tubular portions "0 carrying seals II2 uhich fit closely and seal mgly on the pipe 82 and the arcuate top surface ofthe rib 89. The chamber 70 also has an exit port IZOand a remo able cover I24 carrying a guide bushing I26.

EMBODIMENT OF FIGS. 7 AND 8 A fluid extractor forming an alternate embodiment of the invention includes an extractor chamber I40 identical with the chamber I0 "-16. I t and movable by an irrigation line move (not shounl along a supply line I48 having a pipe I52 like the pipe 22. and a flexible hose I58 normally fitting closely and in the pipe I52. The hose is supplied nith Water under pressure Presser fingers l6. ofa presser wheel I62 extend through openings I66 in the pipe and press arcuate strips I68 away from the pipe to open the interior of the hose to the openings I66. and hater IIon-s into the chamber and out through an exit port I70 to the irrigation line. The strips I68 are defined by circumferential slits I69 extending about one-half of the way around the hose. Aseach fingeris retractedoutot'oneofthe openings I66. the strip I68 engaged springs back from its resiliency and the pressure ol'the water in the hose presses the strip into sealing engagement Illh the inner abutment surface wall ol'the p pe I52. The presure of the water in the hose also tends to squeeze the adjacent faces of the slits into sealing engagement with each other.

The extractor chamber ha bearings I6 journalling shaft I63supportingthewheel l62.andahoincludes a sealed. removable co er I74. Tubular portions I of thechamhersupporttubularseals lllol'whicheach islongerthanthedimensionoftheopenitg I66axially of the pipe I52.

EMNDIMENT OF FIG. 9

Afluidexttaetorfixninganalternaleembodimentof themention'lichdesanextractorchanberlliooteringandnealedhcylinrkiealupperportionlllofa ridpipelllinvhiehafiexiblehosezlllihethe hoselit'ndmelyandsealiigiymaterumler beiagsqtpliedtothelum=2|$Theclamher2I6ha aperaly 'eetangularrecesusininvanlyprojecn mgflagenlsumaundingbottomopeningmanda seaIingmernhermfitsinthereoesandseaIinQy-en- 4 gagesalengthot'theupperportionol'thepipelll. Preser fingers Z of a preser wheel Z32 extend througtopeninglxinthepipeandpressarcuate stripsmawayfromthepipetoopentheinteritwof thepipetotheopenim.ilndwaterflowsintothe cl'iamberandoutthroughanexitpipewtoanirrigation line.

ThecharnherZIO'BmovedaIongIhepipeIIZnith the irrigation Iine.andissupwtedbylep242 rigidly seeuredtothecharriber lltelegsaresupportedby paitsofrollerswritfingonflangswformingapart ofa haseot'the pipe. Upperflangesmprevent tilting o(thechamber.Pairsofrollers2S0caniedbythelegs ulengagethesidsol'tl'iepipelutocenterthe chamberonthepipeTl'te-neightolthechamberand thenterthereinpresthesealagainstthepipexhile alkxhngthesealtobeslidalongthepipe'lhepipelu hasacylindrical interionandmaybeformed by extrudt Whatisclairmdis; Lincombinatiomanoutertubeoomprisingatubular wallwithptxtmeansinthetubulartrall.

asealingmemberot'fiexiblesheetmaterial positionedinthetubeandhasingopeningsolfsetfrom theportmeansandpresedagainsrtheinnertubuthe portionsotthehos herxeentheopeningsheing adaptednhenpresedrad'allyinwardlytoflet the portionsofthehoseatrroimdigtl'ieopeningsaway from the abutment surfaces to open the openings.

ThetmmbinalirmofclaimShereiutltW areholesakmgonesideol'thehoee 7.Thecomhinationofcla'msnhereiitheopenings arvearcuateslitspositionedalongonesirleol'thehosev 8. The combination oI'eIain-ISwherein thedosing meanseomprisesatubefitt'ngclonelyarumd'a'aehoae andltavingadisehargeportolketfrointheopeniigsii thehnne QTheOonbifiiondclaimSVbereinthedos'q meansconprisesattbehavi'gmwedrellive totheopeninpandfittiqclaelyonthehoee.

It'l'hemmbiuatiouofflunhereintheopeaings areholespositinnedatleastoae otthehoneaad lLTheOttmbinatimofcIaimMreintheqainp aiearmateslitsinthehonepcsitionedalmgoneside ofthehoseandtheportsarespacedlong'mdinallyof the opening.

ILThecombinationofclaimlwherein the tube has a slot extending along the top thereof and including a chamber. seals at the ends ofthe chamber engaging the tube. and a presser carried by the chamber and extend ingthrough theslottopresstheadjacent portion ofthe hose radially inwardly.

l3.'lhecornbinationufclaim llwhereinthehose includes a flexible rib extending thcreaktng and substantially filling the slot when not pressed b the presser I. In combination. an elongated outer tube hating lateral port meats. and an inner hose olflexible mater'ul in the outer tube and having lateral openings offset from the port means. the portions of the inner hose surrounring the openingsbeingaihptedtobepressedintosealingengagernent with adjacent portions of the outer tube by presure of fluid in the hose. theportionsofthelnseattheportmeansinthetuhe being adapted to be pushed inwardly to he: the portions of the hose summing the port meats away fromthetubetopennitfluidtoflowoutof thehoseandtoandthmughthepxtmeaminthe tube. l5. In an irrigation extraction device. an elongated llexibie hose having openings spaced therealong and supplied with water under pressure.

suppmtmeansineluding ahutrnentsurfaoemeans nwuntingthehoseinapnsitioniiwhichthewrtmnsthereotsumuiditgtheopeningsengagethe abutment surface means topres-ent flow of water r m achambertnowablealongthelnaemdthesupport means. and actuator means notable \n'th the ehamberfordistottingaportionofthehoseto move a portion of the hose adjacent one of the openinpawayfrorntheabuunent surface means to pennitllowoi'waterfrornthepipetothechamber.

l6.Their-rigationextractiondeviceofclaim l5 whereinthesuppatmeansaxnprisesatubefitting closelyonthehoseandlusingopeninpotfsetfromthe openingsinthelnsetopemtitinsenionoftheactuator meamintothembetomovethehose.

17. The irrigation extraction device of claim 15 llTheirrigationexu-aetiondeviceofchim I7 vhereittheslitsaredongportionsofthecircumferenoeofthetuhe.

".Theirrigationextnetiondeviceofelairn I6 vherei'itl'copeniparewideanddteportimsofthe theilnersurhceofthetobe.

a. The extraction device ofchsn l9 where'utheopenhpinthetubeaeeircunferentially dlaetfronitheopeainpinthehnne.

lLTheii-rigliondeviceofcla'ntlsvhereinthe mlelocaed'ltafirstportionofthehosewhich haastilfnesthesinotmdiqportions ol'thehooeatthesidesofthefirstportionofthehose ll'l'heirriptiondeviceofdaimnwhereinthesurmttilgportiomofthelmehaveathrometerhardneaofbetwoenloanddoandthefirstportionofthe hosehaadurometerhardnessofbetweenmand o.

23.1heirrigationdefioeofclaim2l u'hereinthefirst portionofthehme'nchidesastifienhgelement.

uflteoombinationot'clailn I Ihereintheouter tubeandthesealingrnemberarecylitdricalandcm m. 

1. In combination, an outer tube comprising a tubular wall with port means in the tubular wall, a sealing member of flexible sheet material positioned in the tube and having openings offset from the port means and pressed against the inner tubular wall of the tube, and a presser insertable through the pOrt means to press the sealing member away from the port means to open the openings and form passages from the openings to the port means.
 2. The combination of claim 1 wherein the sealing member is a hose positioned in the outer tube.
 3. The combination of claim 2 wherein the openings are holes in the hose.
 4. The combination of claim 2 wherein the openings are circumferential slits in the hose.
 5. In combination, a hose having lateral openings therein at spaced points therealong, and closing means having abutment surfaces opposite the openings and against which the portions of the hose surrounding the openings are pressed into sealing engagement by fluid under pressure in the hose, the portions of the hose between the openings being adapted when pressed radially inwardly to flex the portions of the hose surrounding the openings away from the abutment surfaces to open the openings.
 6. The combination of claim 5 wherein the openings are holes along one side of the hose.
 7. The combination of claim 5 wherein the openings are arcuate slits positioned along one side of the hose.
 8. The combination of claim 5 wherein the closing means comprises a tube fitting closely around the hose and having a discharge port offset from the openings in the hose.
 9. The combination of claim 5 wherein the closing means comprises a tube having ports staggered relative to the openings and fitting closely on the hose.
 10. The combination of claim 9 wherein the openings are holes positioned at least one side of the hose and the ports are spaced circumferentially from the openings.
 11. The combination of claim 9 wherein the openings are arcuate slits in the hose positioned along one side of the hose and the ports are spaced longitudinally of the openings.
 12. The combination of claim 8 wherein the tube has a slot extending along the top thereof and including a chamber, seals at the ends of the chamber engaging the tube, and a presser carried by the chamber and extending through the slot to press the adjacent portion of the hose radially inwardly.
 13. The combination of claim 12 wherein the hose includes a flexible rib extending therealong and substantially filling the slot when not pressed by the presser.
 14. In combination, an elongated outer tube having lateral port means, and an inner hose of flexible material in the outer tube and having lateral openings offset from the port means, the portions of the inner hose surrounding the openings being adapted to be pressed into sealing engagement with adjacent portions of the outer tube by pressure of fluid in the hose, the portions of the hose at the port means in the tube being adapted to be pushed inwardly to flex the portions of the hose surrounding the port means away from the tube to permit fluid to flow out of the hose and to and through the port means in the tube.
 15. In an irrigation extraction device, an elongated flexible hose having openings spaced therealong and supplied with water under pressure, support means including abutment surface means mounting the hose in a position in which the portions thereof surrounding the openings engage the abutment surface means to prevent flow of water through the openings, a chamber movable along the hose and the support means, and actuator means movable with the chamber for distorting a portion of the hose to move a portion of the hose adjacent one of the openings away from the abutment surface means to permit flow of water from the pipe to the chamber.
 16. The irrigation extraction device of claim 15 wherein the support means comprises a tube fitting closely on the hose and having openings offset from the openings in the hose to permit insertion of the actuator means into the tube to move the hose.
 17. The irrigation extraction device of claim 15 wherein the openings are slits.
 18. The irrigation extraction device of claim 17 wherein the slits are along portions of the circumference of the tuBe.
 19. The irrigation extraction device of claim 16 wherein the openings are wide and the portions of the hose adjacent the openings normally sealingly engage the inner surface of the tube.
 20. The irrigation extraction device of claim 19 wherein the openings in the tube are circumferentially offset from the openings in the hose.
 21. The irrigation device of claim 15 wherein the openings are located in a first portion of the hose which has a predetermined stiffness the surrounding portions of the hose at the sides of the first portion of the hose being substantially less stiff than said predetermined stiffness.
 22. The irrigation device of claim 22 wherein the surrounding portions of the hose have a durometer hardness of between 20 and 40 and the first portion of the hose has a durometer hardness of between 70 and
 90. 23. The irrigation device of claim 21 wherein the first portion of the hose includes a stiffening element.
 24. The combination of claim 1 wherein the outer tube and the sealing member are cylindrical and concentric. 